The immune system depends on the function of _________,which include several types of phagocytic cells and two kinds of lymphocytes.
A) leukocytes
B) erythrocytes
C) platelets
D) target cells
Correct Answer:
Verified
Q2: The surface of most vertebrate cells possesses
Q3: The cellular defenses of vertebrates are complemented
Q4: Nonself molecules called antigens cause the vertebrate
Q7: The procedure of injecting a harmless microbe
Q8: The molecule that provokes a specific immune
Q9: _ are phagocytes that circulate in the
Q10: _ are macrophage precursor cells.
A)B cells
B)Macrophages
C)Plasma cells
D)T
Q11: Because of natural _,a mature animal's immune
Q16: The human immunodeficiency virus mounts a direct
Q17: The surface defenses of the body consist
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